Startup
5-6
Digital Compact
5.3 Ultrasonics Test
The electrical and mechanical components of an ultrasonic welding
system need optimum adaptation to each other. The ultrasonic test
serves to test the system in this respect. For that purpose the power
supply measures the power output without load, i. e. the horn vibrates
freely in air. In case of trouble-free operation of the system without
overload alarms, this power output without weld load remains constant
(+/- 10%) for a longer period. Any increase in power output indicates
an existing or arising problem.
In addition, the ultrasonic test serves to seek the frequency: Every
acoustic stack has its own specific resonant frequency the power sup-
ply must adapt itself to. During the ultrasonic test the power supply
determines this frequency.
CAUTION!
Before pressing the TEST key make sure that the power supply is
connected to a suitable converter via the respective RF cable.
1. Energise all components of the welding system and set the desired
mode of operation.
DANGER!
Make absolutely sure that no one touches the horn when you
press the TEST key Danger of burns!
2. Press the TEST key for 6 to 7 seconds.
3. In case no overload state occurs the test is completed
4. In case an overload occurs press the TEST key again. The system
can then tune itself.
In case of recurring overload alarms, please proceed as follows for
error elimination:
1. Check all components of the acoustic stack for damage (wear, not-
ches, cracks, etc.).
2. Check the mating surfaces between the individual components.
3. Make sure that all components are tightened with the correct tor-
que.
4. In case the above measures do not solve the problem, please con-
tact your BRANSON representative or the BRANSON service:
(++49) (0) 06074-497 784
!
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